type checking and type conversion

In C + +, there is a type conversion, which usually means a flaw (not absolute). So, for type conversions, there are several principles:(1) Try to avoid type conversions, including implicit type conversions(2) If a type conversion is required, use

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog Inheritance occurs between subclasses and parent classes, and is an inheritance relationship of a series of classes.For example: Person is the root class in the class

Inheritance occurs in subclasses and parent classes, which are the inheritance relationship class diagram for a series of classes, the person is the root class in the class hierarchy, and student is the immediate subclass of person, and the worker

inheritance occurs in subclasses and parent classes, which are the inheritance relationship class diagram for a series of classes, the person is the root class in the class hierarchy, and student is the immediate subclass of person, and the worker

dynamic_cast operatorconverts the operand expression to an object of type Type-id.Grammar dynamic_cast (expression) NoteType-id must be a pointer or reference to a previously defined class type or "pointer to void". If Type-id is a

The meaning of type conversion For an intelligent MVC framework, type conversions are unavoidable. Because the request parameters of the B/s (browser/server) structure are sent through the browser to the server, these parameters cannot have a rich

On the issue of coercion type conversion, many books have been discussed, the most detailed writing is the father of C + + "C + + Design and evolution." The best solution is not to use the C-style coercion type conversion, but instead use the

In C + +, there is a type conversion, which usually means a flaw (not absolute). So, for type conversions, there are several principles:(1) Try to avoid type conversions, including implicit type conversions(2) If a type conversion is required, use

Declare several classes:// Animal Class class animal{ }// Terrestrial Animal class terricole:animal { }// Marine Animal Class class seaanimals:animal { }1,is used for type checking.Let cat =terricole () Let fish=seaanimals () let arr=[Cat,

Type conversions for C + +: static_cast, dynamic_cast, reinterpret_cast, and Const_castUse the standard C + + type conversion characters: static_cast, dynamic_cast, reinterpret_cast, and const_cast.1 static_castUsage: static_cast (expression)The